Not liable to failure; "a foolproof identification system"; "the unfailing sign of an amateur"; "an unfailing test"
Verb
proof against human misuse, error, etc.; "Foolproof this appliance"
Adjective S.
not liable to failure; "a foolproof identification system"; "the unfailing sign of an amateur"; "an unfailing test"
Usage Examples
A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.
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Other Usage ExamplesHis priority did not seem to be to teach them what he knew, but rather to impress upon them that nothing, not even... knowledge, was foolproof.